WhatApp Profile Pictures from Contacts

I have a Samsung Galaxy S8+. I have a few contacts who have not set a profile picture within WhatsApp. Previously, it would automatically substitute their lack of profile picture with whatever picture I had set for them in my Samsung Contacts app. Yesterday, I have wiped my device and upgraded to the latest Android 9.0 Pie Beta (build ZSAI) and I've noticed in WhatsApp, this no longer happens. Despite the contact having a picture in my Contacts app, WhatsApp just shows a white person on a grey background. I've looked through the settings and permissions. I can't see anything obvious, but I expect I'm missing something silly. Any suggestions? - Samsung Galaxy S8+ - SM-G955F - Android 9.0 - Build number PPR1.180610.011.G995FXXU4ZSAI - WhatsApp version 2.19.34 Thanks!